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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2011 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: IdMappingMarshaller.html 689 2013-06-28 19:22:16Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.dellroad.stuff.jibx;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.io.IOException;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.util.concurrent.Callable;<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>import javax.xml.transform.Result;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import javax.xml.transform.Source;<a name="line.14"></a>
<span class="sourceLineNo">015</span><a name="line.15"></a>
<span class="sourceLineNo">016</span>import org.dellroad.stuff.java.IdGenerator;<a name="line.16"></a>
<span class="sourceLineNo">017</span>import org.springframework.beans.factory.InitializingBean;<a name="line.17"></a>
<span class="sourceLineNo">018</span>import org.springframework.oxm.Marshaller;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.springframework.oxm.Unmarshaller;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import org.springframework.oxm.jibx.JibxMarshaller;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>/**<a name="line.22"></a>
<span class="sourceLineNo">023</span> * Wrapper for Spring's {@link JibxMarshaller} that performs marshalling and unmarshalling operations<a name="line.23"></a>
<span class="sourceLineNo">024</span> * within an invocation of {@link IdGenerator#run IdGenerator.run()}. Simply set your<a name="line.24"></a>
<span class="sourceLineNo">025</span> * normal {@link JibxMarshaller} to the {@linkplain #setJibxMarshaller jibxMarshaller}<a name="line.25"></a>
<span class="sourceLineNo">026</span> * property and use this class in its place.<a name="line.26"></a>
<span class="sourceLineNo">027</span> *<a name="line.27"></a>
<span class="sourceLineNo">028</span> * &lt;p&gt;<a name="line.28"></a>
<span class="sourceLineNo">029</span> * This is required when marshalling with JiBX mappings that utilize {@link IdMapper}.<a name="line.29"></a>
<span class="sourceLineNo">030</span> *<a name="line.30"></a>
<span class="sourceLineNo">031</span> * @see IdMapper<a name="line.31"></a>
<span class="sourceLineNo">032</span> */<a name="line.32"></a>
<span class="sourceLineNo">033</span>public class IdMappingMarshaller implements Marshaller, Unmarshaller, InitializingBean {<a name="line.33"></a>
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span>    private JibxMarshaller jibxMarshaller;<a name="line.35"></a>
<span class="sourceLineNo">036</span><a name="line.36"></a>
<span class="sourceLineNo">037</span>    /**<a name="line.37"></a>
<span class="sourceLineNo">038</span>     * Configure the nested {@link JibxMarshaller}. Required property.<a name="line.38"></a>
<span class="sourceLineNo">039</span>     */<a name="line.39"></a>
<span class="sourceLineNo">040</span>    public void setJibxMarshaller(JibxMarshaller jibxMarshaller) {<a name="line.40"></a>
<span class="sourceLineNo">041</span>        this.jibxMarshaller = jibxMarshaller;<a name="line.41"></a>
<span class="sourceLineNo">042</span>    }<a name="line.42"></a>
<span class="sourceLineNo">043</span><a name="line.43"></a>
<span class="sourceLineNo">044</span>    @Override<a name="line.44"></a>
<span class="sourceLineNo">045</span>    public void afterPropertiesSet() throws Exception {<a name="line.45"></a>
<span class="sourceLineNo">046</span>        if (this.jibxMarshaller == null)<a name="line.46"></a>
<span class="sourceLineNo">047</span>            throw new Exception("null jibxMarshaller");<a name="line.47"></a>
<span class="sourceLineNo">048</span>    }<a name="line.48"></a>
<span class="sourceLineNo">049</span><a name="line.49"></a>
<span class="sourceLineNo">050</span>    /**<a name="line.50"></a>
<span class="sourceLineNo">051</span>     * Invokdes {@link JibxMarshaller#marshal JibxMarshaller.marshal()} on the configured<a name="line.51"></a>
<span class="sourceLineNo">052</span>     * {@link JibxMarshaller} within an invocation of {@link IdGenerator#run(Callable) IdGenerator.run()}.<a name="line.52"></a>
<span class="sourceLineNo">053</span>     */<a name="line.53"></a>
<span class="sourceLineNo">054</span>    @Override<a name="line.54"></a>
<span class="sourceLineNo">055</span>    public void marshal(final Object graph, final Result result) throws IOException {<a name="line.55"></a>
<span class="sourceLineNo">056</span>        try {<a name="line.56"></a>
<span class="sourceLineNo">057</span>            IdGenerator.run(new Callable&lt;Void&gt;() {<a name="line.57"></a>
<span class="sourceLineNo">058</span>                @Override<a name="line.58"></a>
<span class="sourceLineNo">059</span>                public Void call() throws Exception {<a name="line.59"></a>
<span class="sourceLineNo">060</span>                    IdMappingMarshaller.this.jibxMarshaller.marshal(graph, result);<a name="line.60"></a>
<span class="sourceLineNo">061</span>                    return null;<a name="line.61"></a>
<span class="sourceLineNo">062</span>                }<a name="line.62"></a>
<span class="sourceLineNo">063</span>            });<a name="line.63"></a>
<span class="sourceLineNo">064</span>        } catch (Exception e) {<a name="line.64"></a>
<span class="sourceLineNo">065</span>            this.unwrapException(e);<a name="line.65"></a>
<span class="sourceLineNo">066</span>        }<a name="line.66"></a>
<span class="sourceLineNo">067</span>    }<a name="line.67"></a>
<span class="sourceLineNo">068</span><a name="line.68"></a>
<span class="sourceLineNo">069</span>    /**<a name="line.69"></a>
<span class="sourceLineNo">070</span>     * Invokdes {@link JibxMarshaller#unmarshal JibxMarshaller.unmarshal()} on the configured<a name="line.70"></a>
<span class="sourceLineNo">071</span>     * {@link JibxMarshaller} within an invocation of {@link IdGenerator#run(Callable) IdGenerator.run()}.<a name="line.71"></a>
<span class="sourceLineNo">072</span>     */<a name="line.72"></a>
<span class="sourceLineNo">073</span>    @Override<a name="line.73"></a>
<span class="sourceLineNo">074</span>    public Object unmarshal(final Source source) throws IOException {<a name="line.74"></a>
<span class="sourceLineNo">075</span>        try {<a name="line.75"></a>
<span class="sourceLineNo">076</span>            return IdGenerator.run(new Callable&lt;Object&gt;() {<a name="line.76"></a>
<span class="sourceLineNo">077</span>                @Override<a name="line.77"></a>
<span class="sourceLineNo">078</span>                public Object call() throws Exception {<a name="line.78"></a>
<span class="sourceLineNo">079</span>                    return IdMappingMarshaller.this.jibxMarshaller.unmarshal(source);<a name="line.79"></a>
<span class="sourceLineNo">080</span>                }<a name="line.80"></a>
<span class="sourceLineNo">081</span>            });<a name="line.81"></a>
<span class="sourceLineNo">082</span>        } catch (Exception e) {<a name="line.82"></a>
<span class="sourceLineNo">083</span>            this.unwrapException(e);<a name="line.83"></a>
<span class="sourceLineNo">084</span>            return null;                // never reached<a name="line.84"></a>
<span class="sourceLineNo">085</span>        }<a name="line.85"></a>
<span class="sourceLineNo">086</span>    }<a name="line.86"></a>
<span class="sourceLineNo">087</span><a name="line.87"></a>
<span class="sourceLineNo">088</span>    @Override<a name="line.88"></a>
<span class="sourceLineNo">089</span>    public boolean supports(Class&lt;?&gt; type) {<a name="line.89"></a>
<span class="sourceLineNo">090</span>        return this.jibxMarshaller.supports(type);<a name="line.90"></a>
<span class="sourceLineNo">091</span>    }<a name="line.91"></a>
<span class="sourceLineNo">092</span><a name="line.92"></a>
<span class="sourceLineNo">093</span>    private void unwrapException(Exception e) throws IOException {<a name="line.93"></a>
<span class="sourceLineNo">094</span>        if (e instanceof IOException)<a name="line.94"></a>
<span class="sourceLineNo">095</span>            throw (IOException)e.getCause();<a name="line.95"></a>
<span class="sourceLineNo">096</span>        if (e instanceof RuntimeException)<a name="line.96"></a>
<span class="sourceLineNo">097</span>            throw (RuntimeException)e;<a name="line.97"></a>
<span class="sourceLineNo">098</span>        throw new RuntimeException(e);<a name="line.98"></a>
<span class="sourceLineNo">099</span>    }<a name="line.99"></a>
<span class="sourceLineNo">100</span>}<a name="line.100"></a>
<span class="sourceLineNo">101</span><a name="line.101"></a>




























































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